USN-9083-1

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Source
https://ubuntu.com/security/notices/USN-9083-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-9083-1
Upstream
Related
Published
2026-11-12T20:54:27Z
Modified
2026-11-13T11:28:27Z
Summary
python-gevent vulnerability
Details

It was discovered that the gevent WSGI server incorrectly validated chunked transfer encoding trailers in HTTP requests. A remote attacker could possibly use this issue to perform HTTP request smuggling attacks, leading to privilege escalation.

References

Affected packages

Ubuntu:Pro:16.04:LTS / python-gevent

Package

Name
python-gevent
Purl
pkg:deb/ubuntu/python-gevent?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.1.0-2ubuntu0.1~esm1

Affected versions

1.*
1.1~b1-0ubuntu1
1.1~b1-0ubuntu2
1.1.0-2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python-gevent",
            "binary_version": "1.1.0-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-gevent",
            "binary_version": "1.1.0-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2023-41419",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json"

Ubuntu:Pro:18.04:LTS / python-gevent

Package

Name
python-gevent
Purl
pkg:deb/ubuntu/python-gevent?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.2.2-2ubuntu0.1~esm1

Affected versions

1.*
1.1.2-build2
1.2.2-2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python-gevent",
            "binary_version": "1.2.2-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-gevent",
            "binary_version": "1.2.2-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2023-41419",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json"

Ubuntu:Pro:20.04:LTS / python-gevent

Package

Name
python-gevent
Purl
pkg:deb/ubuntu/python-gevent?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.4.0-1.2ubuntu0.1~esm1

Affected versions

1.*
1.3.7-1build1
1.3.7-1ubuntu1
1.3.7-1ubuntu2
1.4.0-1
1.4.0-1.1
1.4.0-1.2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python3-gevent",
            "binary_version": "1.4.0-1.2ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2023-41419",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:20.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json"

Ubuntu:Pro:22.04:LTS / python-gevent

Package

Name
python-gevent
Purl
pkg:deb/ubuntu/python-gevent?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
21.8.0-1ubuntu0.1~esm1

Affected versions

20.*
20.9.0-2
20.9.0-4
21.*
21.8.0-1
21.8.0-1build1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python3-gevent",
            "binary_version": "21.8.0-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2023-41419",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9083-1.json"